I think I've found a Graphic View I. Well I think it's the early model. I get a bit of a headache reading the descriptions of the differences between the I and the II. I should have measured it but I checked the www.graflex.org website and they claim 12" of bellows max. 3 1/2 min.
The article mentioned the 25% rule. Actually it stated 50% would be better.
You'd think the normal lens would be reasonable but what I've seen on Ebay lately I'm better off getting a new one -( At least if I want one with a working shutter and no problems.
So I get the impression I should stop looking at those 600ml process lens on Ebay-)